OBJECTIVE LIFE SCIENCE
EVOLUTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
They are all eukaryotes.
|
|
|
They are all prokaryotes.
|
|
|
They use DNA and RNA to pass on information.
|
|
|
They are genetically identical.
|
Detailed explanation-1: -All living organisms store genetic information using the same molecules-DNA and RNA. Written in the genetic code of these molecules is compelling evidence of the shared ancestry of all living things.
Detailed explanation-2: -Genetic information is passed from generation to generation through inherited units of chemical information (in most cases, genes). Organisms produce other similar organisms through sexual reproduction, which allows the line of genetic material to be maintained and generations to be linked.
Detailed explanation-3: -The flow of information from DNA to RNA to proteins is one of the fundamental principles of molecular biology. It is so important that it is sometimes called the “central dogma.” Through the processes of transcription and translation, information from genes is used to make proteins.
Detailed explanation-4: -Although each organism’s DNA is unique, all DNA is composed of the same nitrogen-based molecules.
Detailed explanation-5: -Both the molecules of DNA and RNA are formed of monomers known as nucleotides. Both these molecules possess four nitrogenous bases. Both the molecules of DNA and RNA exhibit a phosphate backbone to which attachment of bases takes place.